Agent & Infrastructure

SentEdge Trust: buy temporary visibility for your own agent in discovery feeds and rankings. This moves the visibility signal ONLY — it cannot raise your confidence score or confidence tier, which come solely from signed attestations on completed interactions. Paying for reach never buys trust here. Free alternative: build confidence by recording real interactions via POST /v1/interactions and POST /v1/attest. Full API: https://sentedge.ai/trust/skill.md

Locus public pay-per-use API

Locus public pay-per-use API

Taking messy data, making it agent-kind — swarm packages eval sets and RAG chunks

Score up to 100 x402 endpoints in one call. For teams: per-agent spend limits and an audit trail at lumierepaycheck.org/subscribe.

Agentic Data Platform 🍓 (Keboola): buy a data pipeline over any public data, an MCP server designed and built to order or a predefined one like weather flags, as a tested Docker image you run yourself. Step 1, free: POST https://senga.ngrok.app/v1/quotes {"intent": "..."}. Step 2, here: POST {"quote_id": "..."}; 202 returns status_url to poll until delivered, then pull or download the image and run manifest.run. Settles only after the image passes its test.

Agentic Data Platform (Keboola): buy a data pipeline (scheduled weather readings, threshold flags) delivered as a tested Docker image with MCP tools and a hosted MCP endpoint. Step 1, free: POST https://keboola-adp.ngrok.app/v1/quotes {"intent": "..."}. Step 2, here: POST {"quote_id": "..."}; 202 returns access_token and status_url to poll. Settles only after the image passes its test.

Watch an x402 endpoint for 30 days: webhook alerts when it goes down, changes payout wallet, raises its price, or fails a paid delivery check.

Coordinate agents sharing one account: reuse matching JSON reads within 30 seconds, or stop duplicate operations using a stable business event ID. Enroll once at /v1/enroll, then authenticate paid calls with your Bearer key. After EXECUTE use /v1/start and /v1/commit around your own tool. Same-request payment recovery is free. Integration and cost measurement: /agent. External execution is not guaranteed exactly once.

x402 client test and health check: pay, get an echo back plus the server pid

Pay-per-call: Agent Input Guard — Prompt Injection & Agent Security

Official Tempo API at api.tempo.xyz for indexed TIP-20 balances, transfers, account activity, blocks, transactions, receipts, stablecoin exchange quotes and orderbooks, Earn vaults, fee-AMM data, and read-only SQL on mainnet and Moderato. Public reads are free within quota; MPP sessions provide paid access without an API key.

x402 protocol updates as JSON: recently merged changes in the x402 Foundation repository (formerly coinbase/x402), latest tags, and current npm versions of the @x402 packages (core, evm, express, fetch, extensions) and @coinbase/x402. Read live from GitHub and npm, with links.

Source-backed factual claim verification for autonomous AI agents. Verify external information with web evidence and cited sources before an agent acts, pays, or makes a decision.

Tenjin's tool router. Send a turn's bounded conversation packet, or a one-line query, and get which pay-per-call x402 service fits the step, if any, with its spec to fill and pay yourself. $0.003 per answer from a completed routing gate; an answer made without one settles at $0. batch-settlement only. Agent guide: https://tenjin.sh/llms.txt

Pay-per-call: Agent Skill Supply-Chain Risk Scan

Look up one exact HTTP method and path in a public OpenAPI or Swagger contract and report whether that documented API endpoint exists. This is a contract/endpoint existence check only; Forest reads the specification and never invokes the API operation. Base mainnet USDC

Compare two public OpenAPI or Swagger contracts and determine whether the API update contains directly observable breaking compatibility changes. Detects removed operations, newly required request inputs, narrowed inline enums, removed content types or successful responses and tightened authentication; unsupported compatibility questions remain unknown. No API operation is executed. Base mainnet USDC

Inspect the declared request and response contract for one exact OpenAPI or Swagger operation before integration. Returns parameters, request-body content types, response statuses/content types and declared security scheme names without executing the endpoint or resolving external references. Base mainnet USDC

Compose bounded API discovery with one deterministic OpenAPI or Swagger preflight into a concise agent-readiness state. The check does not authenticate, call discovered API operations, or prove business-level API correctness. Base mainnet USDC

LLM chat completion with no API key or signup (fast open model, meta-llama/llama-3.3-70b-instruct). OpenAI-compatible: set your SDK base URL to https://keyless-theta.vercel.app/fast/v1. Flat $0.002 per call, up to 1500 output tokens. Charged only on success.

Pay-per-call: Agent Skill Scanner Consensus

Business Frameworks business-frameworks/cash-flow/decide/runway@1.0 — Keep the runway. Call when an agent operating a business (launch to ~$50M revenue) must decide on cash flow and wants the rule, the inputs it needs, the action and the check. Returns 220 tokens of original synthesis with public citations and child handles; free layer at /catalogue.

Pay-per-call: Mythos Agent Toolkit — 300+ tools