AgentResolver

Endpoints (47 live)

• GET /api/x402-cdp-canary — No-body $0.001 x402 settlement test for funded agents. Verifies the buyer wallet, facilitator, USDC payment path, and paid delivery end-to-end by returning a timestamped pong only after successful settlement. (0.002 USDC on Base)
• GET /api/x402-ping — No-body $0.001 x402 settlement test for funded agents. Verifies the buyer wallet, facilitator, USDC payment path, and paid delivery end-to-end by returning a timestamped pong only after successful settlement. (0.001 USDC on Base)
• GET /api/provider-launch-check — Paid seller-side readiness and x402 contract verification for providers that want AgentResolver distribution. Produces a bounded registryEntry only after settlement and technical checks. (0.05 USDC on Solana)
• GET /api/x402-payment-preflight — Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before caller authorization. (0.001 USDC on Base)
• GET /api/hash-encode — Deterministic hashing and encoding primitive for SHA-256, SHA-512, HMAC-SHA256, Base64 encode/decode, and non-verifying JWT decode. (0.001 USDC on Base)
• GET /api/x402-settlement-verify — Verify a completed Base USDC x402 exact-scheme settlement from its transaction hash. Reads the public Base receipt and transaction, confirms EIP-3009 payment shape, decodes USDC Transfer events, reports confirmation depth, and optionally... (0.001 USDC on Solana)
• GET /api/verified-resolve — Procure a missing capability across AgentResolver, provider manifests, 402 Index, PayAI, Circle and MCP, then perform at most two unpaid live verification probes for supported MCP/x402 candidates before returning an evidence-backed recommendation. L402/MPP remain discovery-only until protocol-specific verifiers exist. (0.02 USDC on Base)
• GET /api/payment-guard — Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before caller authorization. (0.001 USDC on Base)
• POST /api/agent-distribution-pack — Seller-side agent distribution pack for API agent distribution, API discoverability for AI agents, MCP discoverability, MCP distribution, and agent-service launch. Audits live machine-readable discovery surfaces, diagnoses missing launch... (5 USDC on Base)
• POST /api/managed-monitor-30d — Thirty days of recurring managed monitoring for one public API, MCP server, or x402 service, targeting an hourly cadence without guaranteeing exact run times. Tracks machine-readiness, optional live MCP compatibility/tool-contract drift,... (19 USDC on Base)
• POST /api/provider-launch-check — Paid seller-side readiness and x402 contract verification for providers that want AgentResolver distribution. Produces a bounded registryEntry only after settlement and technical checks. (0.05 USDC on Base)
• POST /api/payment-guard — Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before caller authorization. (0.001 USDC on Base)
• POST /api/usdc-payment-check — Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before caller authorization. (0.001 USDC on Solana)
• POST /api/x402-preflight — Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before caller authorization. (0.001 USDC on Base)
• POST /api/x402-transaction-path-payment-gate — Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before caller authorization. (0.001 USDC on Base)
• POST /api/api-trust-security-preflight — Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before caller authorization. (0.001 USDC on Base)
• POST /api/prepayment-authorization-gate — Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before caller authorization. (0.001 USDC on Base)
• POST /api/x402-settlement-verify — Verify a completed Base USDC x402 exact-scheme settlement from its transaction hash. Reads the public Base receipt and transaction, confirms EIP-3009 payment shape, decodes USDC Transfer events, reports confirmation depth, and optionally... (0.001 USDC on Solana)
• POST /api/x402-payment-preflight — Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before caller authorization. (0.001 USDC on Base)
• POST /api/base64-encode — Encode bounded UTF-8 text as Base64. (0.001 USDC on Base)

+27 more endpoints.

MCP tools (36)

agentresolver https://agentresolver.vercel.app/mcp

• abi_decode — Paid $0.005 USDC on Base or Solana exact Ethereum ABI decoding into JSON-safe typed values.
• abi_encode — Paid $0.005 USDC on Base or Solana exact Ethereum ABI encoding from Solidity typed JSON values to calldata-ready hex.
• agent_distribution_pack — Paid $5 USDC seller-side agent distribution pack for API/MCP discoverability: live discovery audit, ready-to-commit agent-readable artifacts, and a prioritized API/MCP distribution sequence.
• agent_readiness — Paid $0.005 USDC on Base or Solana audit of a public website for agent discoverability and machine-readable integration signals. x402-aware MCP clients can authorize and settle inside this tool call.
• base64_decode — Paid $0.001 USDC on Base or Solana Base64 to UTF-8 decoding.
• base64_encode — Paid $0.001 USDC on Base or Solana UTF-8 to Base64 encoding.
• batch_verified_resolve — Paid $0.05 USDC on Base or Solana batch live verification for 2–4 capability decisions using unpaid MCP and x402/HTTP evidence. x402-aware MCP clients can authorize and settle inside this tool call.
• eip712_hash — Paid $0.005 USDC on Base or Solana exact EIP-712 typed-data digest for signing and verification workflows.
• ens_namehash — Paid $0.01 USDC on Base or Solana ENSIP-15 normalization, exact ENS namehash and label hashes.
• evm_address_checksum — Paid $0.003 USDC on Base or Solana exact EIP-55 address validation and checksum normalization.
• evm_units — Paid $0.005 USDC on Base or Solana exact decimal/base-unit conversion with arbitrary token decimals.
• hash_encode — Paid $0.001 USDC on Base or Solana deterministic SHA-256, SHA-512, HMAC-SHA256, Base64 encode/decode, or non-verifying JWT decode. x402-aware MCP clients can authorize and settle inside this tool call.
• hmac_sha256 — Paid $0.001 USDC on Base or Solana HMAC-SHA256 hex digest.
• http_inspect — Paid $0.001 USDC on Base or Solana verify-before-pay endpoint safety check: payTo verification, quote price, network, asset, resource binding and x402 challenge compliance before an agent authorizes spend. POST probes require explicit caller opt-in because an unprotected endpoint could have side effects.
• json_normalize — Paid $0.001 USDC on Base or Solana canonical JSON normalization plus SHA-256 digest.
• json_schema_validate — Paid $0.001 USDC on Base or Solana deterministic JSON Schema subset validation.
• jwt_decode — Paid $0.001 USDC on Base or Solana non-verifying JWT header/payload decode.
• keccak256 — Paid $0.004 USDC on Base or Solana exact Ethereum keccak256 digest for UTF-8 text or hex bytes.
• mcp_preflight — Paid $0.001 USDC on Base or Solana live MCP endpoint preflight for reachability, compatibility, latency, server metadata and tool inventory. x402-aware MCP clients can authorize and settle inside this tool call.
• openapi_select — Paid $0.005 USDC on Base or Solana selection of the best operation from one public JSON OpenAPI spec for a stated goal. Returns a compact execution-ready contract. x402-aware MCP clients can authorize and settle inside this tool call.
• payment_guard — Paid $0.001 USDC fail-closed payment authorization preflight. Use immediately before an autonomous agent signs a target x402 payment. Returns eligible/blocked, exact observed payment terms, reason codes, evidence receipt and stable fingerprints. The caller retains sole spending authority.
• procure — CALL THIS when the agent's installed tools do not clearly satisfy the current task. Free open-world procurement across APIs, MCP, x402, L402 and MPP. Required compatibility evidence fails closed: AgentResolver returns no selected provider rather than guessing. When supported unknowns remain, the response can recommend the paid $0.02 verified_resolve step. Never authorizes spend.
• provider_bootstrap — Free zero-state provider onboarding. Reads the fixed AgentResolver well-known manifest on one HTTPS origin, live-verifies selected same-origin x402 payment identities, returns an immediate providerOrigins procurement seed, and prepares caller-owned durable 402 Index registration actions. AgentResolver does not persist provider state or send the external registration.
• provider_launch_check — Paid $0.05 USDC seller-side agent-distribution entry check: verify provider readiness and the live x402 contract, then use the $5 Distribution Pack when discoverability artifacts or launch fixes are needed.
• resolve — Free exploratory discovery. Use only when browsing possible tools/APIs/MCP services without needing a trustworthy execution choice yet. For an actual missing capability, prefer procure so required evidence fails closed and unresolved candidates can escalate to verification.
• sha256 — Paid $0.001 USDC on Base or Solana SHA-256 digest of bounded UTF-8 text.
• sha512 — Paid $0.001 USDC on Base or Solana SHA-512 digest of bounded UTF-8 text.
• slugify — Paid $0.001 USDC on Base or Solana deterministic slug generation.
• solidity_selector — Paid $0.01 USDC on Base or Solana exact 4-byte Solidity selector and full keccak256 signature hash.
• sponsorship_info — Free read-only information for tool/API/MCP providers about AgentResolver's explicitly labeled sponsorship pilot. Organic ranking remains independent; applying creates no purchase or financial commitment.
• tool_contract — Paid $0.005 USDC on Base or Solana deterministic JSON-schema compatibility check between one tool output and the next tool input. Returns exact incompatibility reasons and conservative normalized mappings. x402-aware MCP clients can authorize and settle inside this tool call.
• url_parse — Paid $0.001 USDC on Base or Solana absolute URL parser.
• uuid_v4 — Paid $0.001 USDC on Base or Solana UUID v4 generation, up to 20 IDs.
• verified_resolve — PAID $0.02 USDC verification step. Use after procure returns no proven selection / eligible_with_unknowns, or immediately before trusting an unfamiliar external candidate when live evidence is required. Re-checks supported endpoint, MCP, x402 and contract evidence and returns a fail-closed recommendation. Call only when the host independently authorizes the displayed spend.
• x402_payment_preflight — Paid $0.001 USDC on Base or Solana transaction-path gate for autonomous buyers. Returns eligible/blocked, exact target payment terms, fail-closed reason codes and verifiable evidence before caller authorization. AgentResolver never requests a private key, signs the target payment, or custodies/forwards target funds.
• x402_ping — Paid $0.001 USDC on Base or Solana no-body settlement canary for funded agents. Returns a timestamped pong only after successful x402 payment to verify wallet, facilitator, payment, and delivery end-to-end.