# API Acre

> 74 machine-discoverable, x402-paid JSON APIs for autonomous agents.

## Discovery and invocation

- Base URL: https://apiacre.com
- Catalog with schemas and exact, spend-capped purchase handoffs: /catalog (JSON compatibility alias: /catalog.json)
- One-service full JSON contract and purchase handoff: /catalog/{service-slug} (free discovery GET; executes and pays nothing).
- Consolidated Markdown service reference with schemas and examples: /llms-full.txt
- x402 discovery: /.well-known/x402 (JSON compatibility alias: /.well-known/x402.json)
- OpenAPI 3.1: /openapi.json
- Agent crawler OpenAPI fallback: /agents.json
- Agent integration guide: /integrations
- Agent Skills instruction file: /SKILL.md
- Portable Codex plugin bundle: /plugins/api-acre.zip (hashes: /integrations.json)
- Time-limited TaskMarket CLI onboarding campaign: /taskmarket-growth (machine guide: /taskmarket-growth.json). Reading either guide performs no action or payment. API Acre may receive a disclosed referral share only when a genuinely new, independently operated agent qualifies.
- A2A 1.0 Agent Card: /.well-known/agent-card.json
- A2A HTTP+JSON discovery agent: /a2a/message:send (ten curated semantic discovery skills; no paid execution).
- MCP Streamable HTTP endpoint: /mcp (dual-era protocols 2026-07-28 and 2025-06-18)
- MCP tool catalog: /mcp/tools
- MCP discovery card: /.well-known/mcp.json
- MCP server card: /.well-known/mcp/server-card.json
- MCP resources/list exposes the free workflow catalog; resources/read never purchases a tool.
- MCP resources/templates/list exposes free task-to-service recommendations, full single-service purchase handoffs, and static result samples; reading any of them never executes or pays.
- MCP full handoff template: /catalog/{service} (complete schemas, example, and exact spend caps; executes and pays nothing).
- MCP static sample template: /samples/{service}?format=json (use an exact service slug; fresh results remain paid).
- Human-readable API reference: /docs
- Buyer SDK quickstart: /buyers
- Public GitHub integration hub: https://github.com/APIAcre/apiacre
- Copyable multi-call recipes with exact total prices: /workflows.json
- Human-readable workflow guide: /workflows
- Per-workflow HTML and JSON recipes: /workflows/{workflow-id} and /workflows/{workflow-id}.json
- Code-metrics data-contract recipe: /workflows/code-metrics-contract
- Base address evidence recipe: /workflows/base-address-evidence
- Website, domain, and email-authentication evidence recipe: /workflows/website-domain-evidence
- Service documentation links every complete recipe that uses that API; each step remains separately authorized.
- Exact USDC prices and browser checkout links: /pricing
- Custom API, evidence-audit, volume, or integration requests: /request-api (hello@apiacre.com; opening the page creates no order or charge).
- Verified custom-work delivery: Taskmarket primary rank 1, requester rating 99, and 4.625 USDC worker payment on Base. Public task: https://taskmarket.dev/tasks/0xe9fb8fe4e6f83b54d4850efd1c5b6aef6d1bbd7f9f91921d4329f404e64c5682; settlement: https://basescan.org/tx/0xe580591abe9df357abf20f1d45b3ad26381583719a3bcac7d9297fb9c2e81e7d. One completed commission evidences delivery, not future outcomes.
- Customer settlement evidence: at least 34 independently attributed production calls from 17 payers totaling 0.331 USDC on Base through 2026-09-01T11:24:57.584032Z; see https://apiacre.com/use-cases#customer-evidenced. Operator validation is excluded; this minimum aggregate is not an endorsement, repeat-demand signal, forecast, or guarantee, and no buyer data is published.
- Independent x402 reliability report: https://x402register.com/s/apiacre.com. The x402 Register measures unpaid payment-challenge availability, latency, advertised-versus-live price, protocol, and cross-vantage consistency. It samples shared infrastructure and a rotating subset of products; it does not pay endpoints or verify paid-output correctness or completeness. Read the report for current values and timestamp.
- Free static result gallery: /samples
- Free live code-metrics trial: POST /trials/developer.code-metrics (one execution per privacy-hashed edge client per 1 hour; 200000-byte request cap; no wallet or payment header).
- Human free-trial page: /free-trial/developer.code-metrics
- Pixel Acre agent advertising grid: /pixel-acre (1,250 x 800 pixels; 1 USDC per pixel; free atomic reservation at POST /pixel-acre/reservations; quantity-priced x402 claim at POST /v1/advertising/pixel-claim?pixel_count=N; up to all 1,000,000 pixels per settlement).
- Pixel Acre machine state, rules, and free bearer-token status: /pixel-acre/state, /pixel-acre/rules, and POST /pixel-acre/status.
- Each /samples/<service-slug> response includes requestExample plus exact x402 purchase metadata, links, and spend-capped Coinbase Agentic Wallet and optional AgentCash commands on Base.
- Decision-oriented sample workflows: /use-cases
- Application-controlled supplier-commerce guide and exact merchant contract: /guides/supplier-agentic-commerce and /guides/supplier-agentic-commerce.json (reading either never executes or pays).
- Free Three.js arcade gallery: /arcade
- Free intent search (never executes or pays): /recommend?task=redact+personal+data&max_price=0.05. Responses are compact by default; follow service.purchase.fullHandoffUrl after choosing one service.
- Python buyer example: /examples/python-buyer.py
- TypeScript buyer example: /examples/typescript-buyer.ts
- Coinbase Agentic Wallet buyer example: /examples/awal-buyer.sh (official Coinbase client; running may pay automatically; exact atomic USDC cap).
- AgentCash buyer example: /examples/agentcash-buyer.sh (third-party client; fetch may pay automatically; exact spend cap).
- Payment: x402 v2 exact USDC on Base; no account or API key is required.
- Call a POST endpoint with JSON. On HTTP 402, satisfy PAYMENT-REQUIRED and retry with PAYMENT-SIGNATURE.
- Every HTTP 402 also exposes a standard Link header to the free full contract, free static sample, and no-custody checkout review page. Following those links does not carry the request payload, execute, sign, or pay.
- Responses contain request_id, service, version, structured data, execution meta, and curated next_actions where a separate paid step is useful; each action includes a free full-contract handoff, sample and checkout links, an exact atomic-USDC cap, and an explicit no-auto-execution boundary.
- Every next_action is optional and requires its own HTTP 402 challenge and explicit buyer authorization.
- Use Idempotency-Key when retrying the same paid request.

## Services

- [Pixel Acre advertising claim](/services/advertising.pixel-claim): POST /v1/advertising/pixel-claim ($1 x pixel_count USDC) — Claim atomically reserved pixels or multi-colour blocks with optional public notes and sponsored HTTPS links, covering up to API Acre's full 1,250 x 800 exact-million advertising grid. Each pixel costs exactly 1 USDC; the pixel_count query parameter sets the x402 amount. Create the free reservation first at POST /pixel-acre/reservations.
- [Web content extraction](/services/web.extract): POST /v1/web/extract ($0.01 USDC) — Convert and extract a public website URL into clean Markdown or readable text plus bounded structured links, canonical and heading signals, Schema.org types, redirect evidence, content hashes, and response provenance for RAG, research, or agent context.
- [Webpage metadata extraction](/services/web.metadata): POST /v1/web/metadata ($0.002 USDC) — Extract webpage metadata from one public URL: page title, meta description, canonical URL, headings, hreflang, icons, feeds, Open Graph, Twitter Cards, and JSON-LD Schema.org types, with redirect and response provenance plus privacy-safe, publisher-asserted Organization facts with field evidence.
- [Technical SEO audit](/services/web.seo-audit): POST /v1/web/seo-audit ($0.01 USDC) — Audit one public URL for title, meta description, H1 count, image alt text, canonical, robots, language, Open Graph, Twitter cards, headings, hreflang, feeds, and Schema.org data; return a deterministic score and prioritized issue codes.
- [Web security audit](/services/web.security-audit): POST /v1/web/security-audit ($0.05 USDC) — Scan a public website for TLS and browser security header weaknesses and return a security score with fixes.
- [Accessibility audit](/services/web.accessibility-audit): POST /v1/web/accessibility-audit ($0.05 USDC) — Check a public page for deterministic HTML accessibility problems and return actionable WCAG-oriented findings.
- [Performance profile](/services/web.performance-profile): POST /v1/web/performance-profile ($0.025 USDC) — Measure website response latency, payload size, compression, caching, and performance signals for a public URL.
- [Link and site-map analysis](/services/web.links): POST /v1/web/links ($0.005 USDC) — Extract and classify links from one public page or safely crawl up to 10 same-origin pages into an agent-ready site map with page provenance, depth limits, and robots.txt enforcement.
- [Robots and sitemap audit](/services/web.robots-sitemap): POST /v1/web/robots-sitemap ($0.025 USDC) — Inspect a domain's robots.txt crawl rules and XML sitemap health, availability, and URL count.
- [Technology fingerprint](/services/web.tech-fingerprint): POST /v1/web/tech-fingerprint ($0.025 USDC) — Identify frameworks, analytics, CDNs, servers, and other website technologies from public response signals.
- [Email authentication posture](/services/web.email-auth): POST /v1/web/email-auth ($0.005 USDC) — Check a public domain's email authentication and anti-spoofing posture using MX, SPF, DMARC, caller-selected DKIM, MTA-STS, TLS-RPT, and BIMI DNS evidence.
- [Domain intelligence](/services/web.domain-intelligence): POST /v1/web/domain-intelligence ($0.02 USDC) — Investigate a domain using parallel DNS, TLS certificate, RDAP (the standards-based successor to WHOIS), DNSSEC, SPF, and DMARC signals with factual findings and source provenance.
- [Full site audit](/services/web.full-audit): POST /v1/web/full-audit ($0.25 USDC) — Run a comprehensive website audit combining SEO, security, accessibility, and performance scores with prioritized fixes.
- [Website and domain technical due diligence](/services/web.business-due-diligence): POST /v1/web/business-due-diligence ($0.1 USDC) — Assess one public business website and domain using site quality, SEO, security, accessibility, performance, DNS, TLS, RDAP, and optional public GLEIF candidates; return technical evidence and explicit identity, ownership, compliance, and vendor-approval limitations.
- [Live product price snapshot](/services/commerce.product-price): POST /v1/commerce/product-price ($0.01 USDC) — Paste one public retailer product URL to get its current publisher-supplied structured price, currency, availability, seller, shipping terms, aggregate rating, variant attributes, identifiers, observation time, and evidence hashes from Schema.org JSON-LD, Schema.org microdata, or paired product meta tags; optionally compare the selected offer with a buyer-supplied maximum. Fetching proceeds only when robots.txt permits it, without JavaScript, login, cookies, or anti-bot bypass.
- [GLEIF legal entity search](/services/research.lei-entity-search): POST /v1/research/lei-entity-search ($0.01 USDC) — Search the official GLEIF Global LEI Index by exact LEI or legal name and return ranked legal-entity identity, registration, mapped-identifier, and relationship-availability evidence.
- [Document extraction](/services/document.extract): POST /v1/document/extract ($0.01 USDC) — Extract clean text and metadata from supplied PDF, DOCX, HTML, Markdown, CSV, JSON, YAML, or plain-text documents.
- [Table extraction](/services/document.tables): POST /v1/document/tables ($0.025 USDC) — Extract structured table rows and columns from supplied HTML, DOCX, or CSV documents.
- [PII and personal-data redaction](/services/document.redact): POST /v1/document/redact ($0.01 USDC) — Deterministically detect and redact PII and personal data in supplied text with overlap-safe matching for emails, phone numbers, validated IPv4 and IPv6 addresses, Luhn-valid payment cards, valid-checksum IBANs, and structurally valid US Social Security numbers.
- [Document diff](/services/document.diff): POST /v1/document/diff ($0.01 USDC) — Compare two texts and return structured line additions, removals, and a unified diff.
- [Dataset profile](/services/data.profile): POST /v1/data/profile ($0.025 USDC) — Profile CSV, TSV, JSON, JSON Lines, or YAML records for field types, nulls, uniqueness, and representative samples.
- [Dataset cleaning](/services/data.clean): POST /v1/data/clean ($0.01 USDC) — Clean CSV, TSV, JSON, JSON Lines, or YAML records with collision-safe header normalization, deterministic integrity hashes, and exact transformation counts.
- [Data conversion](/services/data.convert): POST /v1/data/convert ($0.005 USDC) — Convert caller-supplied CSV, TSV, JSON, JSON Lines (NDJSON), or YAML with optional root preservation, deterministic integrity hashes, JSON-encoded nested tabular cells, and explicit rejection of ambiguous duplicate keys or non-finite numbers.
- [Deterministic JSON repair](/services/data.json-repair): POST /v1/data/json-repair ($0.005 USDC) — Repair caller-supplied malformed JSON by safely removing an outer Markdown fence, comments, single-quoted strings, unquoted identifier keys, Python literals, and trailing commas, with transformation hashes and strict rejection of duplicate keys or non-finite numbers.
- [JSON Schema generator](/services/data.schema): POST /v1/data/schema ($0.025 USDC) — Create and generate a nested JSON Schema Draft 2020-12 contract by inferring field types and required fields from representative JSON, CSV, TSV, JSON Lines, or YAML records, with equivalent CSV/TSV numeric and null inference, input evidence, and non-enforcing observed bounds.
- [JSON Schema validation](/services/data.schema-validate): POST /v1/data/schema-validate ($0.01 USDC) — Validate JSON data against a bounded JSON Schema Draft 2020-12 contract for nested objects, arrays, required properties, types, enums, formats, lengths, patterns, and numeric bounds; return deterministic instance and schema JSON Pointers, explicit error truncation, input hashes, and no remote reference resolution.
- [Structured data contract](/services/data.contract): POST /v1/data/contract ($0.035 USDC) — Normalize caller-supplied CSV, TSV, JSON, JSON Lines, or YAML to deterministic JSON, infer a Draft 2020-12 schema from that normalized value, and validate one future JSON value in a single x402 call.
- [Schema.org JSON-LD normalization](/services/data.schemaorg-normalize): POST /v1/data/schemaorg-normalize ($0.02 USDC) — Normalize caller-supplied inline Schema.org JSON-LD into deterministic Organization, Product, Service, Article, and Event entities with privacy scrubbing and field-level evidence hashes.
- [Record deduplication](/services/data.deduplicate): POST /v1/data/deduplicate ($0.01 USDC) — Remove duplicate CSV, TSV, JSON, JSON Lines, or YAML records using selected identity fields and report the removed count.
- [x402 endpoint preflight](/services/developer.x402-preflight): POST /v1/developer/x402-preflight ($0.05 USDC) — Probe a public endpoint without paying, grade its x402 v2 challenge, check exact-host x402-list presence and traction, and optionally rank licensed market matches with buyer-concentration caveats.
- [OpenAPI audit](/services/developer.openapi-audit): POST /v1/developer/openapi-audit ($0.05 USDC) — Validate and audit an OpenAPI document for missing operation IDs, descriptions, responses, and consistency problems.
- [Audit Python and npm dependencies for vulnerabilities](/services/developer.dependency-audit): POST /v1/developer/dependency-audit ($0.05 USDC) — Audit exact Python/PyPI, npm, Go, Maven, NuGet, crates.io, or RubyGems dependencies against OSV and return affected packages and vulnerabilities.
- [License compatibility audit](/services/developer.license-audit): POST /v1/developer/license-audit ($0.05 USDC) — Classify software dependency licenses and flag packages that need commercial or legal review.
- [Redacted credential leak scan](/services/developer.secret-scan): POST /v1/developer/secret-scan ($0.005 USDC) — Detect likely leaked API keys, tokens, private-key headers, JWTs, and credential assignments in caller-supplied source or configuration text. Return type, line, fingerprint, and a fully redacted preview with no network access or code execution.
- [Code metrics](/services/developer.code-metrics): POST /v1/developer/code-metrics ($0.025 USDC) — Measure caller-supplied source code with Python AST analysis or a deterministic lexical fallback, including per-function complexity, a SHA-256 fingerprint, density ratios, syntax status, and actionable maintainability signals without retaining or forwarding the code.
- [Code change review](/services/developer.code-change-review): POST /v1/developer/code-change-review ($0.05 USDC) — Compare caller-supplied before and after source snapshots without execution or network access, returning source fingerprints, syntax regressions, structural deltas, function-level changes, and bounded review findings.
- [SQL change review](/services/developer.sql-change-review): POST /v1/developer/sql-change-review ($0.05 USDC) — Statically parse caller-supplied SQL without a database connection or execution, inventory statements and tables, and flag destructive DDL, unfiltered writes, and migration atomicity concerns.
- [Structured diff](/services/developer.structured-diff): POST /v1/developer/structured-diff ($0.01 USDC) — Compare JSON or YAML deterministically and return source hashes plus machine-readable additions, removals, and replacements by path with explicit truncation evidence.
- [Feed normalization](/services/research.feed-normalize): POST /v1/research/feed-normalize ($0.01 USDC) — Fetch and normalize public RSS or Atom feeds into stable structured JSON entries for agents and research workflows.
- [Multi-feed news aggregation](/services/research.news-aggregate): POST /v1/research/news-aggregate ($0.05 USDC) — Merge two to eight public RSS or Atom feeds into a filtered, deduplicated, time-ordered news stream with bounded partial-failure reporting.
- [OpenAPI pytest generator](/services/developer.openapi-test-generate): POST /v1/developer/openapi-test-generate ($0.1 USDC) — Generate deterministic, syntax-validated pytest and requests smoke tests from a caller-supplied OpenAPI 3 document, with mutating operations disabled by default.
- [U.S. federal contract search](/services/research.us-contract-search): POST /v1/research/us-contract-search ($0.02 USDC) — Search public USAspending prime federal procurement awards by recipient company or organization name, UEI, or legacy DUNS, returning bounded contract values, agencies, performance dates, descriptions, official award links, and explicit interpretation limits.
- [Federal Register document search](/services/research.federal-register-search): POST /v1/research/federal-register-search ($0.02 USDC) — Search newest U.S. Federal Register document metadata by topic, agency, type, and publication date, returning bounded regulatory notices, rules, proposed rules, presidential documents, and links to FederalRegister.gov and official govinfo.gov PDFs.
- [OFAC entity candidate evidence](/services/research.ofac-entity-search): POST /v1/research/ofac-entity-search ($0.02 USDC) — Compare a business or organization name with separately named Entity records and aliases in the official OFAC SDN and Consolidated Non-SDN files, returning deterministic candidate scores, program tags, source hashes, and freshness evidence without issuing an allow or block verdict.
- [Official supplier evidence report](/services/research.organization-evidence): POST /v1/research/organization-evidence ($0.1 USDC) — Retrieve a current supplier and organization evidence report from official GLEIF legal-entity, USAspending prime-contract, SEC filing-activity, and OFAC Entity records, with bounded source-specific coverage for procurement research and no identity, linkage, risk, or compliance verdict.
- [NHTSA vehicle VIN decoder](/services/data.vin-decode): POST /v1/data/vin-decode ($0.003 USDC) — Decode a full 17-character VIN into normalized NHTSA vPIC make, model, year, body, engine, transmission, plant, fuel, and occupancy fields with official source evidence and explicit missing-data semantics.
- [World Bank country indicator snapshot](/services/data.worldbank-snapshot): POST /v1/data/worldbank-snapshot ($0.005 USDC) — Bundle six official World Development Indicators into one normalized country snapshot with latest and previous GDP, growth, population, inflation, unemployment, and life-expectancy observations plus source and license evidence.
- [SEC filing activity signals](/services/research.sec-filing-signals): POST /v1/research/sec-filing-signals ($0.05 USDC) — Look up a public company by ticker or CIK, normalize recent SEC filings, and flag deterministic events such as late filings, amendments, auditor changes, non-reliance, control changes, or bankruptcy disclosures.
- [SEC Form 4 insider transactions](/services/research.sec-insider-transactions): POST /v1/research/sec-insider-transactions ($0.03 USDC) — Retrieve recent SEC Form 4 officer, director, and 10% beneficial-owner trades for a ticker or CIK, including purchases, sales, awards, exercises, tax withholding, prices, holdings, 10b5-1 context, derivatives, and filing footnotes.
- [SEC normalized financial facts](/services/research.sec-financial-facts): POST /v1/research/sec-financial-facts ($0.02 USDC) — Retrieve normalized, recent issuer-reported revenue, earnings, balance-sheet, cash-flow, and diluted-EPS facts from official SEC XBRL data.
- [SEC public company evidence bundle](/services/research.sec-company-evidence): POST /v1/research/sec-company-evidence ($0.01 USDC) — Resolve an exact SEC company name, ticker, or CIK, then bundle recent filing signals, normalized issuer-reported XBRL facts, and Form 4 insider transactions into one bounded public-company evidence report with explicit section coverage and official-source provenance.
- [Crossref scholarly work search](/services/research.crossref-work-search): POST /v1/research/crossref-work-search ($0.008 USDC) — Search open Crossref bibliographic metadata by title, author, DOI fragment, or citation and return bounded normalized publication, author, citation, license, and update metadata without abstracts or full text.
- [Crossref DOI metadata enrichment](/services/research.crossref-doi-metadata): POST /v1/research/crossref-doi-metadata ($0.003 USDC) — Resolve one DOI into normalized open Crossref bibliographic, author, container, citation-count, license, identifier, and correction or retraction-link metadata without abstracts or full text.
- [Wikidata organization candidate search](/services/research.wikidata-organization-search): POST /v1/research/wikidata-organization-search ($0.015 USDC) — Search CC0 Wikidata organization candidates and normalize public websites, inception dates, company identifiers, entity types, countries, industries, headquarters, parent, founder, owner, subsidiary, and product links with explicit non-verification caveats.
- [ECB reference FX conversion](/services/data.ecb-fx-reference): POST /v1/data/ecb-fx-reference ($0.002 USDC) — Convert an amount between two supported currencies using one validated ECB daily reference-rate observation. The underlying ECB statistics are available free from the ECB Data Portal; the fee covers bounded retrieval, validation, clearly labelled cross-rate calculation, and x402 delivery.
- [Global place geocode](/services/data.place-geocode): POST /v1/data/place-geocode ($0.002 USDC) — Resolve one global city or locality name into bounded, population-ranked GeoNames coordinates, country and first-level-region identity, population, timezone, feature code, and source freshness without a request-time network call.
- [Global reverse geocode](/services/data.reverse-geocode): POST /v1/data/reverse-geocode ($0.002 USDC) — Resolve one latitude/longitude pair into bounded, great-circle-distance-ranked nearby GeoNames populated places with country, first-level region, population, timezone, feature code, and source freshness without a request-time network call.
- [US address geocode](/services/data.us-address-geocode): POST /v1/data/us-address-geocode ($0.005 USDC) — Geocode one structural address in the United States, Puerto Rico, or U.S. Island Areas with normalized U.S. Census MAF/TIGER coordinates, optional bounded state/county/tract/block/congressional geography, exact source attribution, and explicit range-interpolation limits.
- [Current weather snapshot](/services/data.current-weather): POST /v1/data/current-weather ($0.001 USDC) — Get one current weather snapshot for a city/locality name or exact coordinates. Returns the nearest NOAA/NWS station observation where available; otherwise returns the latest MET Norway model point, always labeled explicitly as observation or model with bounded SI fields and source provenance.
- [Global weather forecast](/services/data.us-weather-forecast): POST /v1/data/us-weather-forecast ($0.003 USDC) — Get a global weather forecast for a city/locality name or exact coordinates. Returns normalized day/night or hourly periods worldwide: NOAA/NWS is preferred within supported U.S. coverage for optional station conditions and active alerts, while MET Norway provides an attributed open-data fallback globally.
- [IANA timezone conversion](/services/data.timezone-convert): POST /v1/data/timezone-convert ($0.001 USDC) — Convert an offset-aware ISO 8601 instant or a local wall time between IANA time zones with explicit DST gap and repeated-hour handling, nearby transition evidence, and a pinned local time-zone database.
- [EVM address inspection](/services/crypto.address-inspect): POST /v1/crypto/address-inspect ($0.002 USDC) — Validate and normalize an Ethereum or EVM wallet address, distinguish valid, absent, or invalid ERC-55 checksum casing, and identify the zero address without a network request.
- [Base account snapshot](/services/crypto.base-account-snapshot): POST /v1/crypto/base-account-snapshot ($0.01 USDC) — Read point-in-time ETH, native USDC, and up to four caller-selected ERC-20 balances plus account nonce and contract-code status at one resolved Base mainnet block.
- [Base account status](/services/crypto.base-account-status): POST /v1/crypto/base-account-status ($0.003 USDC) — Check one Base mainnet wallet or contract for ETH and official USDC balances, transaction nonce, and contract-bytecode evidence at a single resolved block.
- [Base USDC transfer history](/services/crypto.base-usdc-transfers): POST /v1/crypto/base-usdc-transfers ($0.005 USDC) — Retrieve newest-first incoming and outgoing Circle USDC Transfer events for one address across a validated, bounded Base mainnet block range.
- [Base contract event logs](/services/crypto.base-event-logs): POST /v1/crypto/base-event-logs ($0.003 USDC) — Query validated eth_getLogs events from one Base mainnet contract using a required event signature and optional indexed topic filters across a bounded resolved block range.
- [Base transaction gas estimate](/services/crypto.base-gas-estimate): POST /v1/crypto/base-gas-estimate ($0.004 USDC) — Estimate gas for one Base mainnet transaction context at a resolved block, add a bounded caller-selected buffer, and preserve RPC rejection evidence without signing or broadcasting.
- [Base network and fee status](/services/crypto.base-network-status): POST /v1/crypto/base-network-status ($0.001 USDC) — Read the latest Base mainnet block and a bounded EIP-1559 fee history in one RPC batch, including gas utilization and priority-fee percentile samples.
- [Base block inspection](/services/crypto.base-block-inspect): POST /v1/crypto/base-block-inspect ($0.001 USDC) — Get and inspect one historical Base mainnet block by exact number or a latest, safe, or finalized tag, returning its header timestamp, transaction count, gas use, base and blob fees, state and receipt roots, confirmations, and head-distance evidence.
- [Base contract inspection](/services/crypto.base-contract-inspect): POST /v1/crypto/base-contract-inspect ($0.005 USDC) — Inspect Base mainnet contract bytecode, common token metadata, and ERC-165, ERC-721, and ERC-1155 interface signals at one resolved block.
- [Base contract read](/services/crypto.base-contract-read): POST /v1/crypto/base-contract-read ($0.005 USDC) — Execute one bounded read-only eth_call against a resolved Base mainnet block, retain call and block evidence, and optionally decode caller-specified ABI output types.
- [Base transaction inspection](/services/crypto.base-transaction-inspect): POST /v1/crypto/base-transaction-inspect ($0.005 USDC) — Inspect Base transaction status and receipt evidence in one call, including success, revert, or pending state, confirmations, actual gas fee, recognized calldata, bounded ERC-20-shaped transfers, and official Base USDC recognition for payment confirmation.
- [Calldata decoder](/services/crypto.calldata-decode): POST /v1/crypto/calldata-decode ($0.001 USDC) — Resolve 29 common ERC-20, ERC-165, ERC-721, ERC-1155, ERC-2612, and ERC-3009 selectors without a network lookup, or strictly decode arbitrary Ethereum or EVM calldata using a supplied Solidity signature.
- [EIP-712 hash](/services/crypto.typed-data-hash): POST /v1/crypto/typed-data-hash ($0.01 USDC) — Validate EIP-712 typed structured data and derive its domain separator, message hash, and signing digest.